Adrian Peterson is back in a big way, and the Minnesota Vikings suddenly appear to be so much more than a one-man show. Peterson rushed for 116 yards and two touchdowns in his return from a knee injury, and quarterback Tarvaris Jackson continued his steady improvement to lead the surging Vikings to a 42-10 victory over the free-falling Detroit Lions on Sunday. In the last three weeks, Jackson has shown poise, an accurate arm and command of the offense that simply wasn't there early in the season, and Sunday was his best game yet. He was 18-of-24 for 204 yards and two touchdowns, and the Vikings (6-6) scored TDs on their first six possessions to win their third in a row and fourth in the last five games.